check:
R91 - 1.2 ohm 2 watt
R117 - 680 ohm 1/2 watt
R83 - 680 ohm 1/2 watt
if out by more than 5%, replace
also check diodes D13, D25
double check replacement of C48 C50
if picture is still squashed after replacing IC3, check for 24VDC on anode of D25... if low, go backwards through the circuit and find out what's dragging it down.